The treatment is not so good, it's all up to you. There is no development prospect, but it is still developing! Surveyor, it would be better if it could be developed into an insurance company in the future. Do a big survey, the income will be good!
To sum up, it is possible to be a surveyor. The income will not be too low, but it will be too tired.
I suggest you Baidu the "Insurance Adjusters Community", which is full of surveyors.